Portable telephone



FIG. 1 is a perspective view of the portable telephone;

FIG. 2 is a top plan view of the portable telephone shown in FIG. 1;

FIG. 3 is a left elevational view of the portable telephone shown inFIG. 1; and,

FIG. 4 is a rear elevational view of the portable telephone shown inFIG. 1.

The ornamental design for the portable telephone, as shown anddescribed.